hyper v linux performance

Memory performance MetricsMemory-based conceptsExecute the top command first to see the relevant parts of the memory in the results# TopWhat are the VIRT,RES, andswaps ?The following 3 concepts are:Physical Memory Resident- RESActual memory space RAMSwap Area Swapped- SWAPWhen there is not enough physical memory, the operating system will swap out the infrequently used pages in memory to disk spaceSwap into physical memory when the page being swapped

can be used directly. If it is not in the L1 cache , the processor produces a L1 cache Miss. It then checks the L2 advanced cache, and if the data is in the L2 cache, it can be used directly, otherwise it is processed as above, and then the information is retrieved in physical memory. Use caching wisely to reduce the number of cache misses, which can improve performance. 5.2Memory Performance Tools5.2.1 PS

Tags: ROM data test Rules collection notebook SEM disk read-write providerA Linux server Performance View 1.1 CPU Performance View 1, view the number of physical CPUs:cat /proc/cpuinfo |grep "physical id"|sort|uniq|wc -l2. View the number of cores in each physical CPU:cat /proc/cpuinfo |grep "cpu cores"|wc -l3, the number of logical CPUs:cat /proc/cpuinfo |grep "

concerned business operations), and then obtain "concurrent users" based on the scenario using some methods (mathematical models and formulas that compute the number of concurrent users). The reason for this is: Suppose an application system, the peak of 500 people at the same time online, but these 500 people are not concurrent users, because it is assumed that at a point in time, 50% of the people are filling in complex forms (filling out the form action on the server without any burden, only

Chapter 8 high-performance Server programming in Linux (high-performance server program framework)8. High-performance server program frameworkThe server is reconstructed into three main modules:IO processing unit. Four IO models and two efficient event processing modes.Logical unit. Two Efficient concurrency modes.Stor

This article implements Python's method of monitoring Linux performance and process consumption performance in an instance form, implementing the following code: #-*-Coding:utf-8-*-"" "Created on Tue June 10:20:13 2014 @author: Lifeix" "" from collections import ordereddict Import time import os def cpuinfo (): lines = open ('/proc/stat '). ReadLines

Source: http://www.linuxfly.org/post/114/[Go] Understanding Linux PerformanceThe project often encounters the need to perform an efficiency analysis of the systems currently in operation, or to meet customer inquiries to optimize the efficiency of the system. More often, in the event of a system problem, you need to analyze the cause, locate the system failure or bottleneck, of course, it is best to resolve the fault together. But in fact, operating s

The project often encounters the need to analyze the efficiency of the currently running system, or the problem of customer consultation on how to optimize the system efficiency. In more cases, when a system problem occurs, you need to analyze the cause and locate the system fault or bottleneck. Of course, it is best to solve the fault together. But in fact, operating system optimization is a very complicated problem. Moreover, Linux has its own set o

virtualization infrastructure of Red Hat, Ubuntu, and Xen has very low requirements for hardware, which can be installed on any hardware device, at the same time, the use of Linux performance virtualization technology can achieve the "ideal situation" for enterprises to do things with less money ". In terms of technology, as a parallel operating system, Linux

CPU of Linux system and performance monitoringPerformance optimization is the process of finding bottlenecks in system processing and removing them. This article was translated by sanotes.net webmaster Tonnyom in August 2009 from the Linux System and performance monitoring series. This article is the first in a series

What are the hardware factors that affect Linux systems?1. CPU①CPU speed and performance to a large extent determines the overall performance of the system, the higher the number of CPUs, the higher the frequency, the serviceThe better the performance of the device② utilizes hyper